MMBG Newsletter No. 91
... The Burnets are brightly coloured, day-flying moths (genus Zygaena) which have greenish-grey forewings with red markings and predominately red hindwings. In keeping with the warning colouration, the adults secrete a toxic fluid and cyanide has been shown to be present in all stages. This greatly red ...
... The Burnets are brightly coloured, day-flying moths (genus Zygaena) which have greenish-grey forewings with red markings and predominately red hindwings. In keeping with the warning colouration, the adults secrete a toxic fluid and cyanide has been shown to be present in all stages. This greatly red ...
Critical Slowing Down as an Indicator of Transitions in Two
... r = intrinsic rate of increase of prey k = predation rate J = equilibrium prey population size A = predator-prey conversion efficiency K = carrying capacity of prey f(V) = effects of intra-specific competition among prey f(V) > 0; f ’(V) < 0; f(K) = 0; df/dK > 0 h(V) = per-capita rate at which preda ...
... r = intrinsic rate of increase of prey k = predation rate J = equilibrium prey population size A = predator-prey conversion efficiency K = carrying capacity of prey f(V) = effects of intra-specific competition among prey f(V) > 0; f ’(V) < 0; f(K) = 0; df/dK > 0 h(V) = per-capita rate at which preda ...
SPECIAL-STATUS SPECIES BIOLOGY AND LIKELIHOOD OF
... based on some combination of these facts: (1) the Project study area is clearly outside the current range based on available information, and/or (2) the Project study area does not contain suitable or extensive enough habitat (including any adjacent off-Project study area habitat) to hold the specie ...
... based on some combination of these facts: (1) the Project study area is clearly outside the current range based on available information, and/or (2) the Project study area does not contain suitable or extensive enough habitat (including any adjacent off-Project study area habitat) to hold the specie ...
Modern lessons from ancient food webs
... and small. To that end, ecologists have adopted new tools designed to investigate ecological networks and help us uncover and understand past extinctions and their community-level consequences in the hopes of predicting those in the future. To do so, we compare reconstructions of past ecological net ...
... and small. To that end, ecologists have adopted new tools designed to investigate ecological networks and help us uncover and understand past extinctions and their community-level consequences in the hopes of predicting those in the future. To do so, we compare reconstructions of past ecological net ...
Final Review Answers BIOCHEMISTRY Chapter 3 Water and the
... 4. It is a mechanism in which a single ATP-powered pump transports a specific solute can indirectly drive the active transport of several other solutes. Example: An ATP driven pump pumps H+ on one side of the membrane, creating a concentration gradient. As H+ leaks back across the membrane through s ...
... 4. It is a mechanism in which a single ATP-powered pump transports a specific solute can indirectly drive the active transport of several other solutes. Example: An ATP driven pump pumps H+ on one side of the membrane, creating a concentration gradient. As H+ leaks back across the membrane through s ...
NOBANIS - Invasive Alien Species Fact Sheet Oncorhynchus mykiss
... difficulty establish self-sustained populations in Europe, although it is believed that other causes may also cause the problem. In Poland, the species is not self-reproducing although whirling disease has not been observed during the last 50 years. Oncorhynchus mykiss feed on zoobenthos, zooplankto ...
... difficulty establish self-sustained populations in Europe, although it is believed that other causes may also cause the problem. In Poland, the species is not self-reproducing although whirling disease has not been observed during the last 50 years. Oncorhynchus mykiss feed on zoobenthos, zooplankto ...
the intermediate disturbance hypothesis and its applicability to
... generations to reach competitive exclusion. The time span is between 35 and 60 days (Reynolds, 1988). During this period, some gradual environmental change is inevitable, just as it would be over a comparable number of tree generations, but the species displacements during the ascendancy of the domi ...
... generations to reach competitive exclusion. The time span is between 35 and 60 days (Reynolds, 1988). During this period, some gradual environmental change is inevitable, just as it would be over a comparable number of tree generations, but the species displacements during the ascendancy of the domi ...
Co-PIs not attending: Fred Benfield Wayne Swank Lloyd Swift
... The Effects of Nitrogen and Phosphorus on Fine Roots and Mycorrhizae Across Different Taxonomic Groups, Mycorrhizal Types, and Biomes. Nitrogen often limits productivity and can alter carbon allocation to, and the dynamics of, plant root systems. However, the effects of N on belowground processes ar ...
... The Effects of Nitrogen and Phosphorus on Fine Roots and Mycorrhizae Across Different Taxonomic Groups, Mycorrhizal Types, and Biomes. Nitrogen often limits productivity and can alter carbon allocation to, and the dynamics of, plant root systems. However, the effects of N on belowground processes ar ...
61BL3313 Population and Community Ecology
... -Both ants and acacias involved in co-evolved, obligate relationship (each depends on other species, in specialized, one-to-one relationship) -Value of ants to plants is particularly great in tropical dry forests, where rains don’t fall and water is limiting to plant growth for up to half a year -Mu ...
... -Both ants and acacias involved in co-evolved, obligate relationship (each depends on other species, in specialized, one-to-one relationship) -Value of ants to plants is particularly great in tropical dry forests, where rains don’t fall and water is limiting to plant growth for up to half a year -Mu ...
Biodiversity Conservation and Control of Introduced Species in
... information on clearing of native vegetation, see Fact Sheet 7: Clearing of Native Vegetation. This fact sheet is intended for information purposes only. If you require advice about a specific issue, please contact the EDO. This fact sheet is current as at March 2011. It is possible that changes to ...
... information on clearing of native vegetation, see Fact Sheet 7: Clearing of Native Vegetation. This fact sheet is intended for information purposes only. If you require advice about a specific issue, please contact the EDO. This fact sheet is current as at March 2011. It is possible that changes to ...
IAS and Env Ethics Non Animals Conference2
... fittest--in terms of specific populations competing for the same resources in the same territory can no longer be seen as natural. Human interference in destroying and fragmenting habitat, introducing exotic species, and polluting remaining habitat has been so pervasive as to require the present-day ...
... fittest--in terms of specific populations competing for the same resources in the same territory can no longer be seen as natural. Human interference in destroying and fragmenting habitat, introducing exotic species, and polluting remaining habitat has been so pervasive as to require the present-day ...
Sequentially assembled food webs and extremum principles in
... from the pool (the basal species was always present). This was repeated until 100 permanent communities had been obtained from each species pool. Permanent, eight-species communities were sparse in the space of species and approximately 2 × 106 to 4 × 106 iterations were required to find a permanent ...
... from the pool (the basal species was always present). This was repeated until 100 permanent communities had been obtained from each species pool. Permanent, eight-species communities were sparse in the space of species and approximately 2 × 106 to 4 × 106 iterations were required to find a permanent ...
Beak of the Fish: What Cichlid Flocks Reveal About Speciation
... none of these cichlid species are shared between ...
... none of these cichlid species are shared between ...
Adapt or disperse: understanding species persistence
... breeding dates can be attributed to phenotypic plasticity, whereas 13% was a result of genetic change in the population (Reale et al., 2003; Berteaux et al., 2004). This makes phenotypic plasticity a critical survival mechanism. Importantly, evolutionary and plastic responses to climate change are n ...
... breeding dates can be attributed to phenotypic plasticity, whereas 13% was a result of genetic change in the population (Reale et al., 2003; Berteaux et al., 2004). This makes phenotypic plasticity a critical survival mechanism. Importantly, evolutionary and plastic responses to climate change are n ...
Re-defining native woodland
... The identification of native species is based on the assumption that it is possible to disentangle the effects of human interference from biogeography. It is now frequently accepted that native tree species are those which established themselves in Britain after the most recent glacial period, appro ...
... The identification of native species is based on the assumption that it is possible to disentangle the effects of human interference from biogeography. It is now frequently accepted that native tree species are those which established themselves in Britain after the most recent glacial period, appro ...
Niche partitioning in a sympatric cryptic species complex
... species within each pair. This analysis was performed separately for each caste (overwintered queens, workers, males); B. magnus was excluded from the analysis of males due to low sample size. Optimal models were selected to minimise AICc using the function dredge in the MuMIn package (ver. 1.9.5; B ...
... species within each pair. This analysis was performed separately for each caste (overwintered queens, workers, males); B. magnus was excluded from the analysis of males due to low sample size. Optimal models were selected to minimise AICc using the function dredge in the MuMIn package (ver. 1.9.5; B ...
Adapt or disperse: understanding species persistence in a changing
... breeding dates can be attributed to phenotypic plasticity, whereas 13% was a result of genetic change in the population (Reale et al., 2003; Berteaux et al., 2004). This makes phenotypic plasticity a critical survival mechanism. Importantly, evolutionary and plastic responses to climate change are n ...
... breeding dates can be attributed to phenotypic plasticity, whereas 13% was a result of genetic change in the population (Reale et al., 2003; Berteaux et al., 2004). This makes phenotypic plasticity a critical survival mechanism. Importantly, evolutionary and plastic responses to climate change are n ...
Diversity in Tropical Rain Forests and Coral Reefs Joseph H
... 1963 (11). Over a 9-year period, mortality showed no correlation with abundance (Table 1). Thus, it seems safe to assume that species which now have many offspring will be more abundant in the next generation of adult trees as compared to those species which now have few offspring. In most of the mi ...
... 1963 (11). Over a 9-year period, mortality showed no correlation with abundance (Table 1). Thus, it seems safe to assume that species which now have many offspring will be more abundant in the next generation of adult trees as compared to those species which now have few offspring. In most of the mi ...
Ecological community integration increases with added trophic
... entities capable of competing en masse against other such entities. Although this finding has been confirmed (Toquenaga, 1997), its potential implications with respect to multispecies ecological organization have not been investigated further. Here I extend Gilpin’s theoretical result from competiti ...
... entities capable of competing en masse against other such entities. Although this finding has been confirmed (Toquenaga, 1997), its potential implications with respect to multispecies ecological organization have not been investigated further. Here I extend Gilpin’s theoretical result from competiti ...
Ecological principles and function of natural ecosystems - MIO
... reduction of this layer the UV-B radiation that reaches the Earth increased with an increase of skin cancer risks and eye problems. The depletion of the ozone layer is a clear example that the environment does not have national boundaries. CFCs were used in industrialized areas, but its effect conce ...
... reduction of this layer the UV-B radiation that reaches the Earth increased with an increase of skin cancer risks and eye problems. The depletion of the ozone layer is a clear example that the environment does not have national boundaries. CFCs were used in industrialized areas, but its effect conce ...
File
... consistent subtropical conditions. There is little variation in day length, and temperatures are warm and stable throughout the year. Hawai’i, however, is unique. Subtropical conditions exist, but so does nearly every other climactic condition found on Earth (‘Ohu Gon III, 2014). On islands with vol ...
... consistent subtropical conditions. There is little variation in day length, and temperatures are warm and stable throughout the year. Hawai’i, however, is unique. Subtropical conditions exist, but so does nearly every other climactic condition found on Earth (‘Ohu Gon III, 2014). On islands with vol ...
When can two plant species facilitate each other`s pollination?
... its lower intersection with the P1 axis (Fig. 2: I, III, and V). Similarly, the isocline for species 2 has a positive slope at its lower crossing of the P2 axis (Fig. 2: II, IV, and VI). In contrast, these slopes are both negative in the sigmoidal visitation model. A negative slope indicates that fa ...
... its lower intersection with the P1 axis (Fig. 2: I, III, and V). Similarly, the isocline for species 2 has a positive slope at its lower crossing of the P2 axis (Fig. 2: II, IV, and VI). In contrast, these slopes are both negative in the sigmoidal visitation model. A negative slope indicates that fa ...
Extension on Evolution
... and short-lived. Piles of mammal dung, for example, are a valuable resource for some detritivores, but they can be hard to find and never last long. Many kinds of detritivores that cannot fly— mites, nematodes, and even fungi—attach themselves to the bodies of dung beetles, which not only can fly bu ...
... and short-lived. Piles of mammal dung, for example, are a valuable resource for some detritivores, but they can be hard to find and never last long. Many kinds of detritivores that cannot fly— mites, nematodes, and even fungi—attach themselves to the bodies of dung beetles, which not only can fly bu ...
- ResearchOnline@JCU
... one to two P. fuscus, which reflected the natural range of predator densities observed on these reefs prior to manipulations. In the Bahamas, predators consisted of three groupers (Cephalopholis cruentata, C. fulva, and Epinephelus striatus) and two moray eels (Muraenidae: Gymnothorax moringa and G. ...
... one to two P. fuscus, which reflected the natural range of predator densities observed on these reefs prior to manipulations. In the Bahamas, predators consisted of three groupers (Cephalopholis cruentata, C. fulva, and Epinephelus striatus) and two moray eels (Muraenidae: Gymnothorax moringa and G. ...
Western Arnhem Plateau - Department of Infrastructure, Planning
... Calytrix Faucicla Sites, and Calytrix Verticillata Sites (Australian Heritage Council). Much of the eastern portion of the plateau will be incorporated in the proposed Warddeken Indigenous Protected Area (Warddeken Land Management Limited in prep.) The plateau area is proposed to be nominated by Bir ...
... Calytrix Faucicla Sites, and Calytrix Verticillata Sites (Australian Heritage Council). Much of the eastern portion of the plateau will be incorporated in the proposed Warddeken Indigenous Protected Area (Warddeken Land Management Limited in prep.) The plateau area is proposed to be nominated by Bir ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.